DE102009003118A1 - Kitchen appliance with safety device - Google Patents

Abstract

There is provided a kitchen appliance with a safety device comprising a first actuating device, a second actuating device and a control device for controlling a switching on of the kitchen appliance, wherein the control device is set up to switch on the kitchen appliance when the first and the second actuating device are actuated control, and wherein at least one of the first or second actuator are pivotally mounted and are adapted to be operated by a kitchen appliance accessories.

Description

Background of the invention

The The present invention relates to a kitchen appliance with a safety device, the first actuating device, a second actuator and a control device for controlling a turning on of the kitchen appliance.

State of the art

Kitchen appliances are usually operated with electric motors, which have different tools to power food at a high speed. The tools have sharp edges and cutting surfaces that can cause injury to a user.

Usually such kitchen appliances are against unwanted start of the electric motor with different safety devices provided, which can interrupt the power supply, if the kitchen appliance, for example not working properly is taken or if operator errors exist. The safety devices can be different be configured, for example, a number of mechanical and / or magnetic switches that allow the proper compilation of the equipment to detect, thus providing the power supply.

The equipment the kitchen appliances can for example, correspond to a mixing bowl, on the bottom of which are rotating blades or mixing tools. The mixing bowl points a lid on, for Proper use put on the mixing bowl is. To avoid that the driving electric motor without attached Lid starts, has the mixing bowl usually a means which can recognize that the lid is attached has been, thus safely switching on the electric motor to enable. Usually become mechanical rams in one Handle the bowl implemented, which are then actuated by the attached lid, in turn to turn on a safety switch that starts up of the electric motor releases. Consequently, a user can not enter engage the rotating tool of the mixing bowl.

The the aforementioned solution but has different disadvantages. The mechanical rams must be very be precisely aligned to allow a reliable turn on and also the implementation effort of this solution is significant because the Safety device with different essays or accessories of the kitchen appliance got to. For example, the engagement surface of the plunger on the safety device very narrow, which adds that the plungers sharp-edged, must be formed pointed or knife-like, which in addition to a potential May result in injury to the user of the kitchen appliance.

The invention is based task

Of the Invention has for its object to provide a kitchen appliance, which enables safe operation and in particular avoids injuries by rotating tools.

Inventive solution

The solution The object is achieved by a kitchen appliance with the features of the claim 1. Advantageous training and further education, which individually or in Combination can be used together are the subject of the dependent claims.

According to the present Invention is a kitchen appliance with a Security device provided. The security device has a first actuating device, a second actuator and a control device for controlling a turning on of the kitchen appliance. The control device is set up such that switching on of the kitchen appliance at one Actuate the first and second actuator is controllable.

At least one of the actuating devices according to the invention is pivotally mounted and are set up by a Kitchen appliance accessories pressed to become.

By the solution according to the invention is made sure that a driving electric motor of the kitchen appliance is not can start uncontrolled. Thus, the accessories of the kitchen appliance must be properly placed become, thus the actuating devices the safety device operated be used to control the power on. By the use of at least two actuators safety can be increased in the safety device, because operator errors can no longer arise.

By the pivotable mounting of at least one actuating device can the actuation stroke be controlled so that the compatibility of the kitchen appliance ensures different accessories can be. The pivoting of the actuator allowed to form a defined time of switching on or to implement, since no big ones personnel for the Panning the facilities are necessary.

The Solution according to the invention allowed an advantageous combination of different safety devices, which by the pivoting of the actuators in one defined manner can be used. That's the way it is, for example conceivable that, if both actuators pivot are stored, only switching on the kitchen appliance is possible if both facilities have been brought in a swung-open position. Consequently can the device only be put into operation if both controls have passed through their respective Schwenkhub or operating stroke.

Preferred embodiment of the invention

According to one preferred embodiment of present invention, the actuating means are arcuate, and each have an operating area on, which are each arranged on an outer side of the actuators is. Through the arcuate Training of the controls can the actuation stroke be set exactly. Further, the actuators may be enclose rotating parts of the kitchen appliance through the curved shape and the device can thus be made particularly space-saving.

Conveniently, have the controls each have a first and a second pivot point. Thereby can the controls be mounted at different points within the housing, which in turn a space-saving and flexible design of the kitchen appliance corresponds.

Prefers the control device has means for contacting the first and / or the second actuator on. Consequently, the pivotal movement of the respective actuator be implemented in the control device, which the operation of the Kitchen appliance allowed afterwards or not.

According to a preferred Embodiment of present invention, the actuating means elastic Means to go into an unactuated Position to be brought. That is, the actuator after removing a bowl of the kitchen appliance again be guided in their respective starting position. This can be, for example with the help of metallic spring, preassembled on the controls are and provide the necessary spring force. The tension springs can be realized like a bracket and are based on the one hand on the respective actuator and on the other side arbitrarily on a housing or on a housing part of the kitchen appliance. By the clip-like or V-shaped Construction the springs are compressed when the actuators be actuated, which in turn the spring force to return to the respective Starting position of the actuators provides.

Prefers the control device is on a housing of the kitchen appliance between the actuators arranged. So can the switches of the controller exactly from the actuators be achieved. The switches then give the operation of the Kitchen appliance free.

Prefers the control device is arranged on the second actuating device. Thus, the space can be filled within the housing of the kitchen appliance even more effective.

Conveniently, are the controls essentially opposite to each other Kitchen appliance arranged. Due to this symmetrical structure of the actuators, the opposite Enclosing each other around the rotating shafts, the accuracy can be increased. The first actuating device receives for example, the plunger, the from the lid of the bowl actuated is and the second actuator the pestle in the area the bayonet catch in the lower part of the bowl. So Malfunction due to contamination can be counteracted.

Prefers is the operating area the first actuating device is set to be actuated by an actuating means which is attached to a housing of the kitchen appliance or on arranged a kitchen utensil accessories is. This increases the versatility the actuator.

Likewise preferred is the actuating region of the second actuating device ( 12 ) adapted to be actuated by an actuating means which is arranged on a kitchen appliance accessory or on the housing of the kitchen appliance.

Conveniently, can the controls have a common pivot point, such that the actuators arranged around a receiving area of kitchen appliance accessories are. By using a common pivot point for both actuators Fast assembly can be achieved because only one assembly step necessary is.

Particularly preferably, actuating devices are arranged essentially in one plane net. By this preferred arrangement of actuators, the space within the housing can be effectively utilized.

It is preferred that the first actuating device with a Means, which is arranged at a lower portion of a kitchen utensil accessories, cooperates, such that the first actuating device is pivotable about the pivot point. By this arrangement, the first actuating device with a means which is arranged in the bayonet lock of the accessory is, interact and the safe operation of the kitchen appliance is guaranteed.

Conveniently, it is preferred that the second actuating device with a Means, which can be provided by placing a cover of the kitchen utensil accessories is, cooperates. Thus, the placement of a lid of the accessory can be detected may be, and therefore possibly the operation of the kitchen appliance can be released.

It it is conceivable that the kitchen appliance one Safety switch, which with the first and second actuator cooperates to control the operation of the kitchen appliance. Because of the engagement such a switch, the operation can be made even safer.

Brief description of the drawings

Further advantageous embodiments are described below with reference to an in the drawing illustrated embodiment, to which the invention is not limited, described in more detail.

It show schematically:

1 a kitchen appliance according to the present invention without housing cover;

2 a plan view of the kitchen appliance with the safety device;

3 a perspective view of the kitchen appliance without housing cover; and finally

4 a schematic view of the kitchen appliance according to the present invention with attached housing cover.

Full Description based on an embodiment

at in the following description of the present invention same reference numerals same or comparable components.

The in the foregoing description, claims and drawings Features can both individually and in any combination for the realization the invention in its various embodiments of importance be.

1 shows a kitchen appliance 1 according to the present invention. The kitchen appliance 1 has a safety device 10 on which a first actuating device 11 and a second actuator 12 having. Both controls 11 and 12 are pivotable on a housing 40 or stored on a body of the kitchen appliance. The first actuating device 11 has a first pivot point 15 and the second actuator 12 a second pivot point 16 on. Thus, both actuators 11 . 12 each about their pivot points 15 or 16 swing.

According to a preferred embodiment, both actuators 11 . 12 arcuate and preferably extend in a plane. According to one embodiment, the inside of the arcuate actuating means extends 11 . 12 around the drive coupling of the electric motor 13 of the kitchen appliance 1 ,

According to this embodiment, the first actuating device comprises 11 a receiving area 17 for the control device 20 , This recording surface 17 is formed such that a board or printed circuit board of the control device 20 can be included. In this case, the control device pivots 20 together with the first actuator 11 around the common pivot point 15 ,

Both controls 11 and 12 the safety device 10 of the kitchen appliance 1 are set up so that they can be operated by an accessory of the kitchen appliance. A mixing bowl, for example, by means of a bayonet closure 41 attached to the kitchen appliance. By attaching the mixing bowl according to the invention each one of the actuators 11 or 12 operated, allowing the switching on of the electric motor 13 of the kitchen appliance 1 can be controlled. Thus it can be ensured that the electric motor 13 only starts when the mixing bowl properly in the recording or on the bayonet lock 41 has been set up.

To properly operate the kitchen appliance, both controls must be used 11 and 12 be operated. For example, when using a mixing bowl, first becomes the first actuator 11 activated. This agent is, for example, in the lower part of the mixing bowl, namely in the region of the interface between mixing bowl and bayonet closure 41 on the housing 40 of the kitchen appliance 1 , The means may for example be formed as a pin, which by screwing into the bayonet lock 41 the first actuating device 11 actuated. The second actuator 12 can be operated by a second means. This means is also of a mechanical nature and is provided, for example, by placing a lid of the mixing bowl. The placement of the lid on the mixing bowl causes a plunger in the region of the bottom or the interface of the mixing bowl protrudes to the second actuator 12 to be able to press. The second actuator 12 has an actuation prism 19 on which can be activated by the plunger. This actuation prism 19 has different actuation surfaces, so that the mixing bowl either with the lid in the bayonet closure 41 can be screwed in or without a lid. That is, the first chamfer or the actuating surface of the prism 19 comes into effect if the lid is inserted later, and the second bevel if the lid is first inserted and then a recess in the bayonet lock 41 is done. Thus it can be ensured that both actuators 11 and 12 working properly with any combination of operating options.

After the kitchen appliance 1 the user has been properly assembled at the control knob 14 perform the desired actions. For example, he can use the device 1 switch on or the device 1 operate at different speeds. The electric motor 13 can thus safely drive the tool, which can rotate safely within the mixing bowl, without the user can unintentionally intervene in the rotating blades. For example, in operation, when the lid is removed, this causes the plunger in the bottom of the mixing bowl to be retracted, and thus no actuating pressure is produced on the second actuator, which causes the contact between the first and second actuating means to be interrupted. After this contact has been interrupted, the electric motor stops 13 so that no injury is possible.

Therefore, according to the present invention, it must be ensured that both actuators 11 and 12 be actuated to enable a switching on of the electric motor at all. The pivoting of the controls 11 and 12 For example, it can be assisted with the aid of elastic means so that pivoting into a starting position can be ensured at any time, for example when the mixing bowl is removed. According to one embodiment, the safety device 10 at least one switch, which is located on the receiving surface 17 the first actuating device 11 can be located. Therefore, this switch can only be operated or activated if both actuators 11 and 12 together around their pivot points 15 and 16 have been brought in an end position or a closed position. This closed position is effected, for example, in this case by a mixing bowl together with the placement of the lid. For example, if only the mixing bowl in the bayonet lock 41 of the kitchen appliance 1 has been screwed, only half the operating stroke of the safety device 10 causes, and the switch, which is located on the receiving surface 17 can not be activated or switched on. That is, the user must also put the lid on to turn on the kitchen appliance 1 to be able to provide.

Prefers the switch has two switching means which the respective actuators assigned.

Both pivot points 15 and 16 For example, by means of screws or elastic means in the housing of the kitchen appliance 1 to be built in. It is also conceivable that both controls 11 and 12 have been formed integrally with the housing, which can allow a cost-effective production of the kitchen appliance. Furthermore, the shows 1 a drawer 18 in the open position, which for storing tools or accessories of the kitchen appliance 1 is set up. It is conceivable that the skilled person more than two actuators 11 and 12 for the kitchen appliance, in order to increase the operating safety.

2 shows a plan view of the kitchen appliance 1 with the safety device 10 , Both controls 11 and 12 each swing by one point 15 . 16 on the housing 40 of the kitchen appliance 1 , The pivot points 15 and 16 the controls 11 and 12 were opposite to the housing 40 arranged. However, it is conceivable that both pivot points 15 and 16 can be summarized in a single point. The combination facilitates the assembly of the kitchen appliance in the production phase and the stability of the safety device 10 can also be increased. In this example, however, both points become 15 and 16 considered differently. The controls 11 and 12 are preferably in a plane so that they are at the opposite point of the respective pivot points 15 . 16 easy to be contacted together. As mentioned above, the contacting is by an up set a mixing bowl with lid causes. According to this embodiment, the safety device is 10 above an electric motor 13 arranged, in turn, on a device floor 22 has been attached by suitable means. According to this embodiment, the first actuating device comprises 11 a receiving area 17 on which a control device or a circuit board or a control board 23 located. This control board has a switch which turns on the kitchen appliance 1 can control. This switch is activated only if both actuators come together in this contact point. The switch may preferably have two switching means, which can be actuated in each case by the first and the second actuating device. Ie. Both switching means must be brought into the closed position, so that the kitchen appliance can be taken properly in operation.

The arcuate structure of the controls 11 and 12 allows controlled control of contacting between the first actuator 11 and the second actuator 12 in the area of the control board 23 or the control device 20 ,

Both actuating surfaces of the actuators 11 and 12 are located in the middle of the sheets according to this embodiment approximately in the middle of the sheets 11 and 12 , By this arrangement, a secure contact of the two actuators 11 and 12 can be secured, and safe operation with attached bowl and lid can be guaranteed. The first actuating device 11 may have an actuating gate in the region of the arc on the outside, so that the means, which is located at the bottom of the mixing bowl in the region of the interface, can securely engage the later contact with the second actuator 12 to be able to provide. The second actuator 12 points, as in the 1 already explained, an actuation prism 19 on, which can receive the plunger in the region of the bottom of the mixing bowl.

3 shows a further perspective view of the kitchen appliance 1 according to the present invention. The arcuate actuators 11 and 12 are set up in the area of the recording area 17 to be contacted. Therefore, the second actuator 12 a contact area 36 which is adapted to receive suitable means, which the switch, which is located on the receiving surface 17 the first actuator is able to contact. If a mixing bowl on the bayonet lock 41 of the kitchen appliance 1 is placed on both actuators 11 and 12 operated, each pass through the half actuating stroke to a contact in the area 36 respectively. 17 to be able to provide. After this contact is made, the device can 1 Operationally or properly activated.

Both controls 11 respectively. 12 each have a first operating range 31 and a second operating area 32 which is on an outside 34 . 35 located. According to this embodiment, the actuators have an arcuate structure, so that the actuation areas 31 . 32 arcuate. Another structure, for example an operating area 31 or 32 with a recess is also conceivable. For example, if the actuation areas 31 . 32 formed as indentation, for example, a later contacting both actuators 11 and 12 be achieved. Thus, the timing of the contacting or the commissioning of the kitchen appliance 1 to be influenced. Both controls 11 and 12 arcuately run around the drive coupling of the electric motor 13 , The electric motor 13 is then using the control knob or keypad 14 on the housing 40 of the kitchen appliance 1 served.

After the mixing bowl from the bayonet lock 41 of the kitchen appliance 1 has been removed, the controls should 11 and 12 again in each case swing into their initial position. The home position corresponds to not contacting the switch in the area 17 the first actuating device 11 , This pivoting in the starting position of the controls 11 and 12 , can be achieved for example by means of mechanical springs, which are within the pivot point 15 respectively. 16 are located. As already in the 2 mentioned, an integral structure of the actuator can be provided from a plastic material within the housing, so that the aforementioned elasticity, which is necessary to the facilities 11 and 12 to return to the starting position, already given by design. For clarity, these mechanical return springs, which are the actuators 11 and 12 brings to the starting position, not shown. For example, if a user removes the lid from the mixing bowl, this will cause the plunger in the bottom or at the interface between the bayonet lock 41 and bottom of the mixing bowl no longer on the actuating prism 19 can intervene, and thus becomes the second actuator 12 brought back in its initial position by means of the return spring. This causes the contact in the area 17 respectively. 36 the respective actuator 11 or 12 can no longer come about and the power connection to the electric motor is thus interrupted.

4 shows a schematic view of the kitchen appliance 1 according to the present invention with attached housing cover. The housing 40 encloses all electrical and mechanical components within the kitchen appliance 1 one. The drawer 18 is formed such that these in the housing 40 can be included so that no disturbing edges arise when storing the kitchen appliance. The bayonet lock 41 is formed such that the drive clutch 30 penetrates, in turn, a tool which, for example, in a mixing bowl of the kitchen appliance 1 is able to drive. The bayonet lock 41 has two areas, namely an area with an actuating gate for the first actuating device and an area with an actuating prism 19 , which for the second actuator 12 is responsible, up. That is, when placing a mixing bowl or a shaker on the kitchen appliance both areas, namely the Betätigungskulisse and the actuating prism 19 be pressed to allow the kitchen appliance 1 can be properly put into operation. After placing the mixing bowl and closing the lid, the device can 1 by means of the control panel 14 be operated properly and safely.

1

kitchen appliance

10

safety device

11

first actuator

12

second actuator

13

electric motor

14

control panel

15

first pivot point

16

second pivot point

17

Receiving surface for control device or board

18

tool drawer

19

operation Prisma

20

control device

21

medium for contact

22

Component shelf

23

control board

30

drive coupling

31

first operating range

32

second operating range

34

outside the first actuating device

35

outside the second actuator

36

contact area

40

casing

41

reception area in particular bayonet lock

Claims (15)

Kitchen appliance ( 1 ) with a safety device ( 10 ), which is a first actuating device ( 11 ), a second actuator ( 12 ) and a facility ( 20 ) for controlling a turning on of the kitchen appliance ( 1 ), characterized in that the control device ( 20 ) is set up to switch on the kitchen appliance ( 1 ) upon actuation of the first and the second actuating device ( 11 . 12 ), wherein at least one of the first or second actuating device ( 11 . 12 ) is pivotally mounted and adapted to be actuated by a kitchen appliance accessory. Kitchen appliance ( 1 ) according to claim 1, characterized in that the actuating devices ( 11 . 12 ) are formed arcuate, and in each case an actuating area ( 31 . 32 ), which in each case on an outer side ( 34 . 35 ) of the controls ( 11 . 12 ) is arranged. Kitchen appliance ( 1 ) according to claim 1 or 2, characterized in that the actuating devices ( 11 . 12 ) each have a first and a second pivot point ( 15 . 16 ) exhibit. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the control device ( 20 ) Means for contacting ( 21 ) of the first and / or the second actuating device ( 11 . 12 ) having. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating devices ( 11 . 12 ) have elastic means to be brought into an unactuated position. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the control device ( 20 ) on a housing ( 40 ) of the kitchen appliance ( 1 ) between the controls ( 11 . 12 ) is arranged. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the control device ( 20 ) on the second actuator ( 12 ) is arranged. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating devices ( 11 . 12 ) are arranged substantially opposite to the kitchen appliance. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating area ( 31 ) of the first actuating device ( 11 ) is arranged to be of a Actuating means to be actuated, which on a housing ( 4 ) of the kitchen appliance or on a Küchengerätzrabehör is arranged. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating area ( 32 ) of the second actuator ( 12 ) is adapted to be actuated by an actuating means attached to a kitchen appliance accessory or to the housing ( 4 ) of the kitchen appliance ( 1 ) is arranged. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating devices ( 11 . 12 ) have a common pivot point such that the actuators ( 11 . 12 ) around a receiving area ( 41 ) are arranged by kitchen appliance accessories. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the actuating devices ( 11 . 12 ) are arranged substantially in one plane. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the first actuating device ( 11 ) cooperates with a means, which is arranged on a lower region of a kitchen appliance accessory, such that the first actuating device can pivot about the pivot point ( 15 ) is pivotable. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the second actuating device ( 12 ) cooperates with a means which is providable by placing a cover of the Küchengerätzubehörs. Kitchen appliance ( 1 ) according to one of the preceding claims, characterized in that the kitchen appliance has a safety switch which is connected to the first and second actuating device ( 11 . 12 ) cooperates to control the operation of the kitchen appliance ( 1 ) to control.